Miniature cooling apparatus



Sept. 25 19423.

A. FRI-IR. voN copLLl MINIATURE CGOLING APPARATUS Filed Jan. 24. 1922 '5Emails-Sheet 1 2 5Pt 5 1923 A FRHR. voN coDELLl MINIATURE COOLINGAPPARATUS Filed Jan. 24 1922 5 Shouts-Sheet 2 Sept. 25, 1923.

1,468,876' A. FRHR. VON CODELLI MINIATURE COOLING APPARATUS Filed Jan.24. 1922 3 shuts-sheet s Patented Sept. 25, 1923.

ANTON FBHR. von CODELLI, F HEISTE, NEAR LAIBACE, YUGOSLAVIA.'

HINIATURE COOLING APPARATUS.

l Application led January 24, 1922. Serial No. 581,427.

To allwom z't may concern:

Beit known that I, ANTON Fnnrnnnn voN CODELLI, a citizen of Yu oslavia,residing at Moste, near Laibach, lingdom of Yugoslavin, have inventedcertain new and useful Improvements in Miniature Cooling Appa ratus, ofwhich the following is a specification.

My invention consists in a cooling-apparatus comprising a reservoirfilled with a liquefied gas, e. g. ammonia, and an evaporator connectedwith the said reservoir and adapted to `either extend into the vessel tobe cooled or so shaped as to surround the said vessel. A suitablemeansis provided to permit a gradual escape of the liquefied gas into thesaid evaporator from which the vaporized gas then escapes.

In the accompanying drawings diagram matically showing variousembodiments of my invention,

`F ig. 1 is a sectional view of mycoolingapparatus showing theevaporator extending into a bottle the lowerportion of which is brokenaway;

Figs. 2 and 3 are detail views;

Fig. 4 is a. similar view as Fig. 1 showing a modification, in which theevaporator is shaped to form a casing surrounding the S0 bottle to becooled;

Fig. 5 iselso'a similar view as Fig. 1, showing another modiication. i

According to Fig. 1, the reservoir 1 co taining the liqueed es has atthe lower end a neck 2 provid with a screw-thread and adapted to receivea threaded cap 3. The latter has a perforated boss-like extension alsoprovided with a screw-thread, adapted to receive a hexagonal screw-cap 5having openings-21 near its periphery and adapted to close the bore 3 inthe extension of cap- 3. Between the neck 2 of the reserv oir 1 and thecap 3 is provided a packing ring 4. y

The means for opening the bore 3 consiste in a socket-wrench 6 muippedwith handles 6' and having a. large annular re cesA to receive anelastic peckingring 7, producing an air-tight seal between the saidwrench end the cap 3.

For securing the wrench 6 on the cap 3,

the latter is provided with an annular sector 16, while the wrench 6carries at its u per end a claw 17 which by the turning o the wrench 6is moved over the said annular Sector. The lower portion of the wrench 6is shaped to fit the hexagonal cap 5, thus v being' operativelyconnected therewith. In the extreme lower. end of the wrench is secureda funnel-shaped member 10, to which @9 is attached a. pipe 22. To theoutside of the wrench 6 is fastened a short tube 8 provided with anoutlet 9.

Thetube Sis provided with a shoulder 11 and its lowerend 13 isscrew-threaded. @5 Onto this screw-threaded end issecured. a tube 12,which at its upper end has ,a flange 12. Between this langeand theshoulder l 11 on tube 8 is 'provided a packing ring 11.

23 Ais the upper end of a bottle into whichv A extend the tube 12 andthe pipe 22 and the neck 24 of said bottle has interior threads intowhich fit the threads at the upper end of the 'tube 12. Above thethreads in the bottle neck 24 the latter is provided with a 755 7'connection between the bottle neck and the After the reservoir 1 hasbeen filled with a liquefied gas, e. g. ammonia, and tightly closed bythe cap', the socket-wrench 6 is put in place on the cap 3, thehexagonal lower portion of the wrench engaging the hexagonally shapedcap 5. A The claw 1,7 at 35 the upper end of the wrench 6 enters arecess 16 in the sector 16. When'the wrench 6 is now turned, the claw 17engaging the said sector 16, the cap 5 is gradually opened, and theliquefied gas can escape from the reser 90 voir 1 and enter the pipe 22dripping into the evaporating-pipe 12, wherein it is evaporated and thenescapes through the outlet 9 provided on the tube 8. In order to preventany loss of the cooling medium, only such @5 quantities of liquefied gasare allowed to enter the tube 12 as can actually be evapov ratedtherein. Therefore a. stop v20 is provided on the sector 16, which stopprevents the wrench 6 from being turn r enough gas has been released,thewrench 6 is turned hack thereby closing again the cap 5, and the claw7 having again been moved to register with the s 16' in the sector 16,the wrench with its attached im@ parte can now be removed from thereservoir 1. i

In the modication shown in Fig. 4 the evaporator -in this case is o'such dimensions as te form a casing 27,80thetthe botti@ leer u@ too fer.E@

Y be placedwithin the same. To prevent the .the bottle, so that theliquefied gas will be absorbed by the said material Without touching thebottle. In this way a uniform evaporation of the cooling medium isobtained and the bottle is pre-vented from bursting. 1'

The .evaporated coolingmedium escapes lthrough the outlet 31 provided atthe upper end of the eva orating casing 27.

In the modi cation shown in Fig. 5, biot-v tles are employed the bottomsof which have an inwardly extending tube-shaped cavity 32 which formsthe evaporator. The bottle is put upside down and placed with its bottominto a holder 33, which is provided with an annular recess 34 containinga packing 35 against which the bottom of the .bottle is pressed.The'center of the holder 33 is provided with a threaded opening 33'adapted to receive the correspondingly threaded upper end of a tube 36,extending into the tubular cavity 32 in the bottom of the bottle.Thetube 36 forms a continuation of the 'short tube 8 attached to thewrench 6, and a packing ring 37 is pro- .vided in a recess in the holder33, where the short tube 8 enters the same. 38 is the drip- 'pipeconnected to the funnel-shaped member 10, to allow the liquid gas todrip down into the cavity 32, after, by a corresponding turn mesmereservoir and a apted to operate said closure.

2. A -cooling device as specified in claim -1, including a drip-pipeinterposed between the said reservoir and the said evaporator.

3. A cooling device as speciiied in claim 1', including an outletprovided on the said evaporator for the vaporized liquid.

4.. A cooling device comprislng a reserf voir containing a liquefiedgas, a closure for the said reservoir, an evaporating chamber`independent of the said reservoir, a manually operated member adapted toconnect the said reservoir and the said levaporatinchamber and to openthe said closure, an means for fastening said member to said reservoir.5. A cooling device as speciiedin claim 4, including a funnel-shapedbody held in the said member, and a drip-pi@ extending from the saidfunnel-shaped body into the said evaporating chamber;

6. Acooling device as specied in claim 4, including a connecting tubebetween the said member and thelsaid evaporating chlnber, and an outleton said connecting tu In testimony whereof I aiiix my signa-x ture inpresence of two witn ANTON FRHR. v. `CODELLI.

Witnesses: i I

S. Fnmnmcn Frasasonenn Enum To.

